body, h1, h2, h3, h4, h5, h6, hr, p, blockquote, pre,dl, dt, dd, ul, ol, li, th,
td, div, span, img,fieldset, lengend, button, input, select, textarea{
  margin: 0;padding: 0;
}
.clearfix{
  zoom:1;
}
.clearfix:after{
  display:block;
  content:"clear";
  clear:both;
  line-height:0;
  visibility:hidden;
}
input{
  outline: none;
}
li{
  list-style:none;
}
a{
  text-decoration:none;
}
em{
  font-style:normal;
}